Bài Tập Phương Trình Mũ – Logarit
– Thư viện Bài giảng, ðề thi trắc nghiệm
3x 1 x 2
3 9
− +
=
2
x 3x 2 x 1
2 16
+ − +
=
5 3x
6 216
−
=
2
x x 2
7 1
+ −
=
x 1 x 1 2x 5
2 .5 10
− − +
=
2
x x 1 x
3 81
− −
=
1 2x
1
3
27
−
=
3x 2
1
16
2
−
=
2x 5 5x 2
2 5
5 2
− −
=
2
x 15 x
3 9
−
=
2
x x 2 3x 2
25 5
− + −
=
2
x 3
x 5x 6
1
2
2
− +
− +
=
2
x 15 x
5 25
−
=
2
x 2x
5 125
−
=
2
x 1
x 3
1
5
25
−
−
=
x 3
1
6
216
−
=
2
x x 2
1
10
100
+ −
=
x 2x 3
4 8
−
=
2
x x x 2
2 4
− +
=
2
x 4x
1
3
243
− +
=
x 1 2x 2x x 1
3 18 .2 .3
− − +
=
( ) ( )
x 6x 5
0,4 6,25
−
=
x x 2 x 1
2 .3.3 .5 1500
− +
=
2x 1 2x 1
5 3.5 550
+ −
− =
x 1 x 1 2x 5
2 .5 0.001.10
− − +
=
x 10 x 5
x 10 x 15
16 0,25.8
+ +
− −
=
x x
x
1 1
3 .
3 27
=
x
x
2
3 .5 225
=
x x
3 4 9
.
4 3 16
=
x x
2 9 27
.
3 8 64
=
3x 7 7x 3
3 7
7 3
− −
=
x
2x 1 2x 1
27 9
− −
=
x 1 x
5 5 4 0
−
− + =
x
x
2
3 8.3 15 0
− + =
2
x 1
x 1
1
3
27
− −
−
=
2
x 15 x
3 9
−
=
2
x 2x x 3
9 3
− −
=
3x 2
x 3
1
5
5
−
−
=
3x 2
1
2
8
−
=
2
3x 7 x 4x 5
2 4
− + −
=
2
x x x 2
25 5
− +
=
2
x
6x
3
2 8 5 0
+
+ − =
x 1 2x 1
4.9 3 2
− +
=
2
x 3 x 5x 6
2 5
− − +
=
x 1
x
x
5 .8 500
−
=
x x 1
10 10 0,11
−
+ =
x x 2 x 2 x 1
1 1
3.4 .9 6.4 . .9
3 2
+ + +
+ =
x 1 x 2x 5
2 .5 2.10
+ +
=
x x 1 x 2
2 .3 .5 12
− −
=
2
x 6x 2,5
2 16 2
− −
=
x 1 x 1 x 2 x 1 x x 2
2 2 2 3 3 3
− − − − −
+ + = − + +
x x
4 2 6 0
+ − =
x x 1
9 8.3 1 0
−
− − =
2x 1 x
2 5.2 2 0
+
− + =
x 1 x 2
3.9 24.3 4 0
− −
− + =
x 1 x 2
9 3 4
+ +
+ =
2x x
5 2.5 15 0
− − =
2x 1 x 1
1
3.5 2.5
5
− −
− =
2x 8 x 5
3 4.3 27 0
+ +
− + =
x 1,5 x x 1
4 9 6
+ +
+ =
x x
4 9.2 8 0
− + =
2x 3 x 2
4 3.4 1 0
− −
− − =
x x 1
4 2 80
+
+ =
2x x
13 6.13 5 0
− + =
1
x
x
2
16 15.4 4
+
= +
x
2x 8.6 12 0
6
− + =
2x 1 x 2
2 2 16
+ +
+ =
x x
4 9.2 8 0
− + =
2x x
5 4.5 5 0
− − =
4 x 2 x
3 4.3 3 0
− + =
2 2
x 2 x 2
4 9.2 8 0
+ +
− + =
x 2 2 x
3 3 0
+ −
+ =
x 2 2 x
2 2 15
+ −
− =
x 1 1 x
5 5 26
+ −
+ =
x 1 2 x
2 2 9
+ −
+ =
x x x
4 9 2,5.6
+ =
x 1 2 x
15.2 15.2 135
+ −
+ =
2 2
1 x 1 x
10 10 99
+ −
− =
2x x 2x
4.2 6 18.3
− =
(
)
( )
x
x
4 15 4 15 8
− + + =
(
)
( )
x
x
2 3 2 3 4
− + + =
x x 1
25 5 50
− − +
+ =
(
)
( )
x
x
5 2 6 5 2 6 10
− + + =
(
)
(
)
x x
7 48 7 48 14
+ + − =
1 3
3
x x
64 2 12 0
+
− + =
x x 1 3
25 6.5 5 0
+
− + =
2x 4 x 2x 2
3 45.6 9.2 0
+ +
+ − =
x x x
6.9 13.6 6.4 0
− + =
x x x
3.16 37.36 26.81
+ =
3x 3 5 3x
5.2 3.2 7 0
− −
− + =
x 1 x 2
9 3 18 0
+ +
+ − =
x x x
5.4 7.10 2.25 0
− + =
x x x
8 18 2.27
+ =
x 2 x 2
4 16 2
− −
+ =
1
x
x
2
4 7.2 4
− +
−
− =
2 2
3x 2x 1 3x 2x
4 2 9.2
− + −
+ =
1
x
x
2
16 15.4 4
+
= +
4x 8 2x 5
3 4.3 27 0
+ +
− + =
(
)
(
)
x x
4 15 4 15 62
+ + − =
x x x
3.49 2.14 4 0
+ − =
(
)
( )
1
3
2
1
3
log x 3x 4 log 2x 2
+ − = +
( )
1
log x log x 1
2
= +
2
x x
log 10 log 10 6 0
− − =
(
)
( )
2
3 3
log x 4x 3 log 3x 21
− + = +
(
)
( )
2
2 2
log x 6 log 3x 6
− = −
(
)
2
5
log x 11x 43 2
− + =
(
)
( )
2
4 4
log x 4x 3 log 3x 7
− + = −
(
)
( )
2
5 5
log 2x x 3 log 2x 1
− + = +
x 1
log 4 2
−
=
(
)
2
x
log 3x 5x 3 2
− − =
(
)
(
)
log 2x 2log 4x 15
= −
(
)
2
x
log 2x 3x 4 2
− − =
(
)
2
x 1
log x 3x 1 1
+
− + =
(
)
2
x
log 3x 8x 3 2
− + =
(
)
2
x 1
log 3x 7x 2 2
−
− − =
(
)
2
5 x
log x 2x 65 2
−
− + =
1 1
5 5
x 2 2
log log
10 x 1
+
=
+
( )
5 5
3x
log x 2 log
x 2
− =
+
(
)
x x
2 1
x
2
1
log 4 15.2 27 2log 0
4.2 3
+ + − =
−
(
)
( )
2
1 1
3 3
log x 7x 1 log 5 2x
− − = −
(
)
( )
2
2 2
log x 2x 1 log x 1
+ − = +
(
)
( )
2
2 2
log x 1 log x 1
− = +
(
)
3
log x 2x 5 1
− =
(
)
( )
3
2
log 8 10x 12x log 2x 1
− − = −
( )
2
3 3
2 log x 5log 9x 3 0
− + =
(
)
(
)
4 4 4
log x 3 log x 1 2 log 8
+ − − = −
x 2x 4x
log 2.log 2 log 2
=
(
)
3 3 3
log x 2 log x log 8
− + =
(
)
log x 9 2log 2x 1 2
− + − =
(
)
(
)
log x 3 2log x 2 log0,4
+ − − =
(
)
(
)
4 4 4
log x 2 log x 2 2 log 8
+ − − = −
( ) ( )
5 5 5
1 1
log x 5 log x 3 log 2x 1
2 2
+ + − = +
2 1
2
2
2log x log x log x 9
+ + =
(
)
(
)
(
)
9 9 9
log x 1 log 1 x log 2x 3
+ − − = +
(
)
(
)
(
)
7 7 7
log x 2 log x 2 1 log 2x 7
− − + = − −
(
)
(
)
2 1
2
log x 1 1 log 3 x
+ + = −
1 4
3
5 4.log x 1 log x
+ =
− +
3 1
3
3
log x log x log x 6
− + =
2 9 13
7 log x 11 log x 12
+ =
− +
2 2
1 2
1
2 log x 4 log x
+ =
− +
3 3
1 3
2
4 log x log x
+ =
−
x 4
7
log 2 log x 0
6
− + =
2 x
log x log 2 2,5
+ =
2
2 1
2
2
log x 3log x log x 2
+ + =
2
2x
x
log 16 log 64 3
+ =
( ) ( )
2
2
2 0,2
log x 1 5 log x 1
− = + −
( ) ( )
2
2
2 2
log x 1 3 log x 1
− = + −
2 2
log x 9.log x 40
+ =
2 2
2 2
log x 3 2.log x
+ =
2 3
log x 10log x 1 0
− + =
2
64 x
5
log x log 4
3
+ =
2
64 x
5
log x log 4
3
+ =
2
x x x
log 5 log 5x 2,25 log 5
+ − =
x 16 2
3.log 16 4.log x 2.log x
− =
x 2
log 16 log x 3 0
− + =
5 x
2log x log 125 1 0
− − =
3 2
x x x
log 10 log 10 6log 10 0
− − =
4 log x 3 log x
− =
2
3 3
2log x 5log 9x 3 0
− + =
3 x 3
x
1
log x log 3 log x log 3
2
+ = + +
( )
2
1 1
10 10
2x 54
log log x 4
x 3
−
= −
+
1 1
3 3
log x 3 log x 2 0
− + =